Technofour providesoffers conductivity meter, type 979. This conductivity meter operates , which works on the principle of eddy currents. Some of the technical features of this conductivity meter include: it measures electrical conductivity of non-ferrous metals in the range of 10% to 102% iacs [international annealed copper standard] with an accuracy of ±1% iacs. The readings are taken on the spot by means of hand held probe. It has direct digital display with 0.1% iacs as least count. The probe size is 8 mm. Using suitable steps sample components up to 4 mm can also be checked. This conductivity meter finds its applications in: measurement of absolute conductivity of electrical hardware and electrical conductors made of copper, aluminium and their alloys; determination of homogeneity of metal near surface; estimation of properties which have correlation to electrical conductivity such as ageing, hardness, etc. The principle on which cconductivity meter type 979 works is an on the principle of eddy currents. A probe induces eddy currents at a fixed frequency in the test part. These currents affect the electrical impedance of the test probe. The change in impedance is proportional to the electrical conductivity of the test part. Thus, conductivity measurement is possible by measuring the corresponding change in probe impedance. Some of the typical applications are: measurement of absolute conductivity of electrical hardware and electrical conductors made of copper, aluminium and their alloys; determination of homogeneity of metal near surface; estimation of properties which have correlation to electrical conductivity such as ageing, hardness, etc.
